That not being satifactory, they just eliminated the the term hunger from their reports and replaced it with low food security.
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Often, this hunger is at odds with the best food choices.
That change brings about sensory disturbances in our body which are not unpleasant in moderation, which we call hunger, thirst and fatigue.
In all likelihood, the number of hungry is less than a one billion, depending on your definition of hunger, which is not to be confused with malnutrition you can be malnourished and not hungry since hunger is technically a measure of caloric intake.